Coenen (20-5) posted a dominant unanimous-decision victory over Romy Ruyssen (5-2) at the all-female promotion’s first show, which took place Saturday at Memorial Hall in Kansas City, Kan. The event streamed on the organization’s website.

It marked the first fight for Coenen since she lost her Strikeforce bantamweight title to Miesha Tate this past July.

The Dutch fighter, who also defeated Ruyssen via submission in 2008, used a well-balanced striking attack on her grappler opponent. As Ruyssen struggled to get the fight to the mat, Coenen scored with kicks, elbows and punches over the course of the three-round fight.

“We had a strategy to take it easy in the first round to frustrate her then put pressure on in the second round,” Coenen said.

After referee Greg Franklin deducted a point from Ruyseen in the first round due to cage-grabbing, Coenen emerged victorious with 30-26 scores across the board.

After the fight, Coenen called out Strikeforce champion Ronda Rousey, who took the belt from Tate earlier this year.

Former Strikeforce title challenger and U.S. Marine Liz Carmouche (6-2) rebounded from hard-fought Strikeforce losses to Coenen and Sarah Kaufman with a first-round TKO victory over overmatched Ashleigh Cury (1-1). Carmouche got the fight to the mat and unloaded heavy ground and pound to get the stoppage at the 1:58 mark of the opening round.

In a bout that ultimately won “Fight of the Night” honors, Kaitlin Young (6-5-1) and Leslie Smith (3-2-1) fought to a split draw. The competitive fight, which ended in a standing ovation, prompted Invicta CEO Shannon Knapp to award both fighters their win bonuses.

Finally, 2008 Olympic bronze-medal wrestler Randi Miller (1-0) made a successful pro debut and defeated Mollie Estes (1-1) via third-round TKO. Miller ate knees and struggled for takedowns in the first round before rallying and unloading heavy ground and pound for a TKO stoppage at the 3:27 mark of the final round.

Season-three Bellator heavyweight-tournament semifinalist Damian Grabowski (15-1) notched a signature win by submitting former UFC fighter Eddie Sanchez (13-6) via second-round kimura at Friday’s MMA Attack event in Poland. Grabowski’s only career loss came via decision to Cole Konrad, who went on to win the Bellator tourney and earn the inaugural heavyweight title. Grabowski fights again on Friday at Bellator 67, where he meets Dave Huckaba (17-4) in Canada.

Former UFC fighter and jiu-jitsu ace Dean Lister (12-7) fought for the first time in more than two years and earned a third-round heel-hook victory over Rodney Moore (7-8) at Saturday’s Cage Contender 13 event in Northern Ireland.

In the main event of Thursday’s “KOTC: Hardcore” event in California, Tony Lopez (31-8) defended his heavyweight title for the second time in 12 days with a first-round TKO of Jason Walraven (4-2). At “KOTC: Bad Intentions 2″ on April 14, he also scored a third-round TKO victory over Cody East (3-1). After logging time with M-1, EliteXC, the WEC and Bellator, Lopez recently has found his stride and carries a seven-fight win streak.

UFC women’s bantamweight champion Ronda Rousey is probably the greatest female fighter on the planet, which is a tremendous feat. So why are we seemingly so obsessed with arguing about whether she could beat up men?